On the Ergodic Capacity of the Wideband MIMO Channel

Chatzinotas, S., Imran, M. A. and Hoshyar, R. (2009) On the Ergodic Capacity of the Wideband MIMO Channel. In: IEEE 69th Vehicular Technology Conference (VTC Spring 2009), Barcelona, Spain, 26-29 Apr 2009, ISBN 9781424425174 (doi:10.1109/VETECS.2009.5073731)

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Abstract

In the ergodic capacity literature, the majority of results preserve the assumption of a flat-fading Gaussian channel. However, the actual wireless channels in current communication systems are often wideband and therefore time dispersive and frequency selective. In this direction, we study the ergodic capacity of a wideband MIMO channel. Starting from a tapped delay line model for the time domain, the frequency domain model is derived by employing the Fourier transform. However, in both cases the resulting channel matrix is characterised by non-separable correlation amongst the Gaussian blocks. The asymptotic eigenvalue probability density function and the channel capacity are calculated by specializing a theorem originating in operator-valued free probability. Finally, numerical results are presented to verify the validity of the approach and study the effect of the channel model parameters.

Item Type:Conference Proceedings
Additional Information:This research has been funded by the following Industrial Companies who are Members of Mobile VCE - BBC, BT, Huawei, Nokia, Nokia Siemens Networks, Nortel, Vodafone.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Imran, Professor Muhammad
Authors: Chatzinotas, S., Imran, M. A., and Hoshyar, R.
College/School:College of Science and Engineering > School of Engineering
ISSN:1550-2252
ISBN:9781424425174
Published Online:12 June 2009

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